A coepobatiom



E. DANNER.

GAGE.

APPLICATION FILED FEB. 21'. |917.

Patented May 13, 1919.

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Be it known that l, Rowman BANNER, a citizen of the United States, and a resident of Toledo, in the county of Lucas and State of Uhi'o, have invented` a certain new end useful Gage; and l do hereby declare the following to be a full, clear, and eXa'ct description of' the invention, such as will enable others skilled in the art to which it appertains to make .and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specication.

This invention relates to means for indieating the size of a bar or tube being drawn, and is particularly intended for use in connection with the continuous drawing of molten glassin bar ortube form.

rll`he Object of my invention is the provision of a simple and eiicient means of this character, which is adjustable to 'accommodate stock of diderent diameters and is extremely sensitive in its nature to adapt it'to lindicate a very slight variance in the diameter of the stock being drawn. Other objects and advantages of the invention will be apparent from the following detailed description thereof.

While the invention, in its broader aspect, is capable of embodiment in numerous forms, a preferred embodiment thereof is illustrated in the accompanying drawings, in which- Figure 1 is a front elevation of an apparatus embodying the invention. Fig. 2 is a section on the line 22 thereof, and Fig. 3 is a fragmentary section on the line 3--3 in Fi l.

Referring to the drawings, 1 designates a plate, which rises from a base or pedestal 2 being braced and strengthened with respect thereto by webs 3, and having its'u'pper edge mrminating in a double-faced y'segggncent 4. The plate 1 is provided centrally of its lower edge portion with an opening 5, through which the stock 6 may feed, and at opposlte sides of such open-ing with for'- ward'extensions 7 and 8 forming parts of the base 2 and having webs 9 and 10 ,at the respective Aouter ends thereof.

Guide-rods 11 and 12 project inward from the respective webs 9 and 10 and have brackets 13 and 14 respectively mounted thereon for movements toward and away Specification of Letters Patent.

Patented May 13, 191%. serial no. Italia.

from each other, said brackets having their bottoms in sliding engagement with the respective extensions 7 and Each of said brackets carries a horizontally disposed roll 15 ot any suitable type on its inner end in periphera'lly spaced relation to the other roll to permit the passage of the stock o therebetween.

An adjusting screw lo is threaded through the web 9 and projects loosely atjts inner end through an apertured ear l? 'on the outer end ofthe bracket 13, the inner end oit said screw being shouldered to limit the inward movement of the Abraicllret 13 with respect thereto, and a coiled compression springl 18 is mounted on said rod between said 'ear and web to resist an outward movement ot 'the bracket. The inward movement of the bracket is limited by the coaction of the ear' 1*( withthe shouldered end of the rod. A handwheel 19 is carried by the screw 16 at its' outer end' and a locknut 20 is threaded on the screw for engagement with the web 9. y Y l An adjustment of the bracket 14 and'its pressure against the stock 6 is controlled by a screw 21, which is threaded th-rough the web 10 and loosely 'projected at itis inner end through an apertured ea'r 22 on the outer end 'of said bracket, being shouldered at the inner side of said ear to limit the inward movements of the bracket. A coiled compression spring 23 of less tension than the spring 18 is mounted on the screw 21 in opposed end thrust contact with the web 10 and-ear 22 to urge an inward movement of the bracket. A hand-wheel 24 is provided on the outer end of the screw 21, and

fa locknut 25 is threaded on the scirew in engagement with the web 10. Al sleeve 26 is preferably mounted on the screw 21 within the spring the shoulder at t e inner end of the screw to limit the permissible reciprocatory movements of the bracket l14. i v t The normal space between the gage rolls 15, 15 is less than the thickness of the stock 6 so that the bracket 14 is moved outward thereby 'from normal position and relative to the screw 21, due to the spring 23 being of lesstensi'on than the'spring 18. The dilferencan the tensionl of the two springs also permits the bracket 14 to have reciprocatory movements in accordance with any irregularities encountered in the stock .23' and cooperates withl dll by the rolls 15, 15 or any variation in thev thickness of the stock as it passes between the rolls. y

The bracket 14 hasa pin 27 projecting from its rear side adjacent to its outer end,

and this pin isconnected by a coiled contractile spring Y2 8 to the lower short arm` v `of a vertically disposed lever 29, .which is ulcrumed, as at 30, tothe plate 1 and has its upper end connected by a link 31 to la Short rocker arm 32, Ywhich extends down from a rock-shaft 33 `mounted in the plate 1 A -side4of the bracket 14 in spaced relationlongitudinally'7 thereof, and the'lower arm of the lever 29 projects down between these pins in normally slightly spaced relation to the inner pin and being held in yielding contact withthe outer pin by the spring 28.

' The outer pin causes the lower end of the lever to have inward swinging `movements when the 'bracket' 14 moves inward. It is preferable to connect the upper end of the lever 29 and the lower end of the rocker arm 32 with a coiled contractile spring 36 in parallel relation to the vlink 31 to' take up any play or wear occurring in the joints at the ends of said link.

In 4order to' indicate to .theoperator the range within which the size of the bar or tube being drawn should be kept under ordinary conditions, two limit-cllps 37, 37 are' slidingly mounted on the upper edge of the segment 4 and spaced equally from the normal center position of the indicator iingers 34. If the indicator fingers 34 assume' a substantially permanent position-without the range indicated by the space between the limit clips 37, the operator knows that the bar or tube being drawn is either running too thin or too thick in diameter, depending on the direction in which the indicator lingers are moved from central position and the operator then adjusts the drawing apparatus accordingly.

It is evidentin the use of my indicator that the brackets 13 and 14 are set to .suit the size of bar or tube being acted on, the bracket 13 being permanently retained at the limit of its inward movement except when sudden or abnormal shocks are imparted to the rolls 15 by encountering enlargements in the stock when rapidly feeding therebetween. Under such abnormal conditions the spring 18 yields to permit an outward movement of the bracket 13. 01- dinarily, however, said bracket remains stationary and all of the relative to and :fro

movements imparted to the rolls 15, 15 by the stock are communicated to the bracket 14 and thence transferred in a multiplied form to the indicator fingers 34, due to the motion multiplying connection between the bracket 14 and said indicator lingers.

I wish it understood that my invention is not limited to anyspecitic construction, arrangement vor. form of the parts, as it is capable of numerous modifications without departing from the spirit 'of the claims.

Haying thus described my invention, what I claim as new, and desire to secure by Letters Patent, is A 1. VIn a gage of the class described, a pair of work coacting. gage members mounted for relative to and :tro movements, means for adjusting the limit of inward movement of one of said members, means yieldingly rcsisting an outward movement of said adjustable member, and indicator means connected to said yieldingly movable member and operable by movements thereof to indicate in a multiplied manner variations in the size of the work passing between said members.

2. In a gage of the class described, a pair of Work coacting gage members mounted for relative to and fro movements, separate means forl adjusting the limit of inward movements of each of said members, separate means, one stronger than the other, for yieldingly resisting a relative outward movement of said members, and indicator means connected to the more easily movable one of said members and operableby movements thereof to indicate variations in the size of the work passing between said members.

3. In a gage of the class described, a pair of relatively movable members, a roll carried by each member for engagement with opposite sides of a work bar or tube passing therebetween, means yieldingly resisting an outward movement of one of said members and its roll, an indicator linger, and means yieldingly connecting said finger and yieldingly movable member to communicate movements from one to the other.

4. In a gage of the class described, a pair of relatively movable members, e, roll carried by each member for engagement with opposite sides of a work bar or tube, separate means, one stronger than the other, yyieldingly resisting an outward movement of each of said' members and its roll, an indicator finger, and means yieldingly connecting said finger and the weaker of said yieldingly movable members to communicate movements from one to the other.-

5. In a gage of the class described, a frame, a pair of brackets mounted for op- :posed reciprocatory movements on said frame, rolls carried by said brackets for opposed engagement with a work bar or tube assing therebetween, separate means adjustable to limitl the inward movements of Leoeee A each of seid brackets end to resist on outcounicete movements from one to the Werd e. m thereof, one of said means other. l being other than the other in its resistance In my whereof, I have hereunto to en outwemd movement of its bracket, an signed my memeto this specieetionn 5 indicator ger, and `ntmealns'conneeting'g said 14|@ er and the weaker of said Brackets to r EDWARD 

